STEREO A & B Stories

An image of the Sun shows a bright flash in the bottom right side where a solar flare erupts.

How NASA Tracked the Most Intense Solar Storm in Decades

5 min read

May 2024 has already proven to be a particularly stormy month for our Sun. During the first full week of May, a barrage of large solar flares and coronal mass ejections (CMEs) launched clouds of charged particles and magnetic fields…

Article1 month ago

An animation shows a white cloud of material billowing away from the Sun (which is covered by a black disk at the center) toward the left side of the image, set against a red background with a couple dozen stars. The top says "STEREO Ahead COR2" and the bottom shows the date 2021-04-17 with the time progressing from 12:23:30 to 23:53:30.

Multiple Spacecraft Tell the Story of One Giant Solar Storm

5 min read

April 17, 2021, was a day like any other day on the Sun, until a brilliant flash erupted and an enormous cloud of solar material billowed away from our star. Such outbursts from the Sun are not unusual, but this…

Article4 months ago

A New Space Instrument Captures Its First Solar Eruption

3 min read

For new Sun-watching spacecraft, the first solar eruption is always special. On February 12, 2021, a little more than a year from its launch, the European Space Agency and NASA’s Solar Orbiter caught sight of this coronal mass ejection, or…

Article3 years ago